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ZHAO Yu, MA Kezhen, YANG Dechao, GUO Zebin, ZHANG Wendong, XUE Chenyang, YAN Shubin. Research of vernier effect of ring resonator in sensor fields[J]. LASER TECHNOLOGY, 2014, 38(3): 293-296. DOI: 10.7510/jgjs.issn.1001-3806.2014.03.002
Citation: ZHAO Yu, MA Kezhen, YANG Dechao, GUO Zebin, ZHANG Wendong, XUE Chenyang, YAN Shubin. Research of vernier effect of ring resonator in sensor fields[J]. LASER TECHNOLOGY, 2014, 38(3): 293-296. DOI: 10.7510/jgjs.issn.1001-3806.2014.03.002
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Research of vernier effect of ring resonator in sensor fields

  • Key Laboratory of Instrumentation Science and Dynamic Measurement(Ministry of Education), North University of China, Taiyuan 030051, China

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  • Received Date: November 03, 2013
  • Revised Date: November 07, 2013
  • Published Date: May 24, 2014
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    • Abstract
  • To verify the vernier effect of fiber ring resonators, fiber ring resonators in different length were studied. The relationship between the transmission spectrum and the fiber ring resonator with the length of 2.24m, 2.52m was analyzed and compared, one resonant spectrum could be used as the ruler and the other as the vernier, when the resonant frequency was the same and the number difference of free spectral range (FSR) was only one. Based on the difference aliquot measuring principle and by dividing FSR of the ruler into nine parts,the minimum measurement accuracy of the vernier was 0.01GHz which was consistent with MATLAB theoretical simulation result. Theory and experiments show that the accuracy can be improved by changing the size of the resonant cavity to increase the aliquot number of FSR difference. The vernier effect of resonator is expected to be potentially applied in the field of high-sensitivity sensor because of the sensitivity of the micro-cavity to the change of external environment.
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    • References (15)
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